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From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
To: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Michal Hocko <mhocko@kernel.org>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
	Anshuman Khandual <khandual@linux.vnet.ibm.com>,
	linux-kernel@vger.kernel.org,
	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Subject: [PATCH v1 1/9] mm: hugetlb: prevent reuse of hwpoisoned free hugepages
Date: Thu,  1 Jun 2017 17:16:51 +0900	[thread overview]
Message-ID: <1496305019-5493-2-git-send-email-n-horiguchi@ah.jp.nec.com> (raw)
In-Reply-To: <1496305019-5493-1-git-send-email-n-horiguchi@ah.jp.nec.com>

We no longer use MIGRATE_ISOLATE to prevent reuse of hwpoison hugepages
as we did before. So current dequeue_huge_page_node() doesn't work as
intended because it still uses is_migrate_isolate_page() for this check.
This patch fixes it with PageHWPoison flag.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
---
 mm/hugetlb.c        | 3 +--
 mm/memory-failure.c | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git v4.12-rc3/mm/hugetlb.c v4.12-rc3_patched/mm/hugetlb.c
index e582887..6d6c659 100644
--- v4.12-rc3/mm/hugetlb.c
+++ v4.12-rc3_patched/mm/hugetlb.c
@@ -22,7 +22,6 @@
 #include <linux/rmap.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
-#include <linux/page-isolation.h>
 #include <linux/jhash.h>
 
 #include <asm/page.h>
@@ -872,7 +871,7 @@ static struct page *dequeue_huge_page_node(struct hstate *h, int nid)
 	struct page *page;
 
 	list_for_each_entry(page, &h->hugepage_freelists[nid], lru)
-		if (!is_migrate_isolate_page(page))
+		if (!PageHWPoison(page))
 			break;
 	/*
 	 * if 'non-isolated free hugepage' not found on the list,
diff --git v4.12-rc3/mm/memory-failure.c v4.12-rc3_patched/mm/memory-failure.c
index 2527dfed..6c1a7c9 100644
--- v4.12-rc3/mm/memory-failure.c
+++ v4.12-rc3_patched/mm/memory-failure.c
@@ -49,7 +49,6 @@
 #include <linux/swap.h>
 #include <linux/backing-dev.h>
 #include <linux/migrate.h>
-#include <linux/page-isolation.h>
 #include <linux/suspend.h>
 #include <linux/slab.h>
 #include <linux/swapops.h>
-- 
2.7.0

WARNING: multiple messages have this Message-ID (diff)
From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
To: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Michal Hocko <mhocko@kernel.org>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
	Anshuman Khandual <khandual@linux.vnet.ibm.com>,
	linux-kernel@vger.kernel.org,
	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Subject: [PATCH v1 1/9] mm: hugetlb: prevent reuse of hwpoisoned free hugepages
Date: Thu,  1 Jun 2017 17:16:51 +0900	[thread overview]
Message-ID: <1496305019-5493-2-git-send-email-n-horiguchi@ah.jp.nec.com> (raw)
In-Reply-To: <1496305019-5493-1-git-send-email-n-horiguchi@ah.jp.nec.com>

We no longer use MIGRATE_ISOLATE to prevent reuse of hwpoison hugepages
as we did before. So current dequeue_huge_page_node() doesn't work as
intended because it still uses is_migrate_isolate_page() for this check.
This patch fixes it with PageHWPoison flag.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
---
 mm/hugetlb.c        | 3 +--
 mm/memory-failure.c | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git v4.12-rc3/mm/hugetlb.c v4.12-rc3_patched/mm/hugetlb.c
index e582887..6d6c659 100644
--- v4.12-rc3/mm/hugetlb.c
+++ v4.12-rc3_patched/mm/hugetlb.c
@@ -22,7 +22,6 @@
 #include <linux/rmap.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
-#include <linux/page-isolation.h>
 #include <linux/jhash.h>
 
 #include <asm/page.h>
@@ -872,7 +871,7 @@ static struct page *dequeue_huge_page_node(struct hstate *h, int nid)
 	struct page *page;
 
 	list_for_each_entry(page, &h->hugepage_freelists[nid], lru)
-		if (!is_migrate_isolate_page(page))
+		if (!PageHWPoison(page))
 			break;
 	/*
 	 * if 'non-isolated free hugepage' not found on the list,
diff --git v4.12-rc3/mm/memory-failure.c v4.12-rc3_patched/mm/memory-failure.c
index 2527dfed..6c1a7c9 100644
--- v4.12-rc3/mm/memory-failure.c
+++ v4.12-rc3_patched/mm/memory-failure.c
@@ -49,7 +49,6 @@
 #include <linux/swap.h>
 #include <linux/backing-dev.h>
 #include <linux/migrate.h>
-#include <linux/page-isolation.h>
 #include <linux/suspend.h>
 #include <linux/slab.h>
 #include <linux/swapops.h>
-- 
2.7.0

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  reply	other threads:[~2017-06-01  8:17 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-01  8:16 [PATCH v1 0/9] mm: hwpoison: fixlet for hugetlb migration Naoya Horiguchi
2017-06-01  8:16 ` Naoya Horiguchi
2017-06-01  8:16 ` Naoya Horiguchi [this message]
2017-06-01  8:16   ` [PATCH v1 1/9] mm: hugetlb: prevent reuse of hwpoisoned free hugepages Naoya Horiguchi
2017-06-01  8:16 ` [PATCH v1 2/9] mm: hugetlb: return immediately for hugetlb page in __delete_from_page_cache() Naoya Horiguchi
2017-06-01  8:16   ` Naoya Horiguchi
2017-06-01  8:16 ` [PATCH v1 3/9] mm: hwpoison: change PageHWPoison behavior on hugetlb pages Naoya Horiguchi
2017-06-01  8:16   ` Naoya Horiguchi
2017-06-01  8:16 ` [PATCH v1 4/9] mm: hugetlb: soft-offline: dissolve source hugepage after successful migration Naoya Horiguchi
2017-06-01  8:16   ` Naoya Horiguchi
2017-06-01  8:16 ` [PATCH v1 5/9] mm: soft-offline: dissolve free hugepage if soft-offlined Naoya Horiguchi
2017-06-01  8:16   ` Naoya Horiguchi
2017-06-01  8:16 ` [PATCH v1 6/9] mm: hwpoison: introduce memory_failure_hugetlb() Naoya Horiguchi
2017-06-01  8:16   ` Naoya Horiguchi
2017-06-01  8:16 ` [PATCH v1 7/9] mm: hwpoison: dissolve in-use hugepage in unrecoverable memory error Naoya Horiguchi
2017-06-01  8:16   ` Naoya Horiguchi
2017-06-01  8:16 ` [PATCH v1 8/9] mm: hugetlb: delete dequeue_hwpoisoned_huge_page() Naoya Horiguchi
2017-06-01  8:16   ` Naoya Horiguchi
2017-06-01  8:16 ` [PATCH v1 9/9] mm: hwpoison: introduce idenfity_page_state Naoya Horiguchi
2017-06-01  8:16   ` Naoya Horiguchi

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